Perforator for preparing telegraphic transmitting-tapes.



P. B. DELANY. PERFORATOR FOR PREPARING TBLEGRAPHIG TRANSMITTING TAPES.

7 APPLICATION FILED APE. 16, 1902.

906,618. Patented Dec. 15,1908.

WITNESSES: N ENTOR M m/(Q% I Q q 3 M UNITED STATES PATENT OFFICE.

PATRICK B. DELAN Y, OF SOUTH ORANGE, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE TELEPOST COMPANY OF MAINE, OF AUGUSTA, MAINE.

Specification of Letters Patent.

Patented Dec. 16, 1908.

Application filed April 16, 1902. Serial No. 108,095.

To all whom it may concern:

Be it known that I, Barman B. DELANY, a citizen of the United States, residing at South Orange, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Perforators for which the perforator magnets are controlled by a Morse key in the circuit of which is a magnet operating a pole changer that controls a dlflerentially wound polarized relay, which, in turn, controls the local circuits and battery of a second polarized relay whose armature lever controls the main circuits in which the two punch magnets are included.

The purpose of the present invention is to dispense with the first named polarized relay and actuate a polarized relay that controls the punch magnet circuits directly from the pole changer that is actuated on the manipulation of the Morse key.

A second feature of the invention relates to the drawing of the stri that is being punched. Heretofore the rawing devices have been constructed and arranged to act in either of two ways: first, the strip is advanced after each perforation by the action of devices positively intermittently ac tuated after the punching of each perforation. This system involves the stopping and starting of the drawing devices, or their intermittent positive control by some action set up corresponding with the actuation of the punches, to advance the tape step by step and has disadvantages that are well understood. The other system is one in which the tape is continuously drawn forward; and this has the objection that the punches cannot be actuated with such rapidity as to avoid elon ation of the aperture or formation of a bur or turned ed e at one side thereof by reason of the dra t exerted upon the tape while the punch is still engaged with it.

In the present invention, the tape drawing devices are continuously actuated andare continuously in engagement with the tape. They are, however, so arranged and constructed that the resistance of the tape, when engaged by the punch, causes it to remain stationary, or to cease to travel until the punch has risen or passed out of en? gagement with it, To accomplish this re.- sult, I preferably employ drawing rolls be tween which the tape passes, one, at least, of which is continuously driven, and one of which is capable of adjustment as regards the pressure and consequent friction exerted upon the tape so that the drawing power of the rolls is not suflicient to move the tape when its resistance is increased b the entrance of the punch; but, when t e punch leaves the tape it is drawn steadily and uniformly forward until again engaged by a punch.

A modification of the organization of tape drawing devices is one in which there is a yielding cushion roll interposed between the punch and drawing rolls and serving to deflect the tape from a straight line between the bed of the punch and the bite of the rolls, and which, when the tape is engaged by a punch, yields and permits that part of the tape engaged by the punch to pause until the punch has passed out of engagement with it.

In the accompanying drawings: Figure 1 is a diagrammatic view illustrating a complete organization. 4 Fig. 2, a detail view indicating an arrangement in which the pressure of the drawing rolls may be adjusted so that they will slip upon the tape when its resistance is increased by the entrance of a punch: and Fig. 3, a detail view showing an elastic yielding cushion over which the defiected tape passes located between the punches and the bite of the drawing roll,

Referring to Fig. 1, K represents a Morse key; A, a magnet included with the local battery in the circuit of the key; PC a ole changer actuated by the magnet A; a differentially wound polarized relay; LB the local battery of the relay; MB the battery; and D, E, the punch ma nets. L indicates the die block with which t e punch ma nets cooperate and a: is the tape.

ith the several instrumentalities in the position shown in Fig. 1, the main current circuit for the punch ma net E is open at the stop 0 of the polarize relay and consequently that magnet is deenergized, notwithstanding, the circuit from it is completed through the hook contact h and spring contact 6, of the pole changer, to one pole of the battery The armature of the relay being against its stop f, the circuit of the punch magnet D is closed at that point, but the same circuit being open at the pole changer contact 6, the magnet is not energized. When the key K is depressed against its contact, the magnet A is energlzed and the armature lever of the pole changer is attracted towards its limiting contact 6; but, before the contact is completed at that point, the spring ton ue contact d has passed into action with the top 6 and been pressed out of engagement with the insulated hook contact k, the effect of which has been to complete the circuit of the punch magnet D from one pole of the main battery MB through the armature lever of the polarized relay, its contact stop f, winding of punch magnet D and through pole changer contacts 6, (Z, to the other pole of the battery. The punch magnet D is, therefore, actuated and its corresponding punch 20 operated. When, however, the armature lever of the pole changer reaches its contact 5, the circuit of the local battery LB is completed through one winding of the diii'erentially wound polarized relay with the efl'ect that its armature lever is caused topass to the contact stop 0, thus opening the circuit of the punch magnet D at the contact f. W hen the key is raised, the armature lever of the pole changer rises toward its contact stop 9 and the spring tongue (5 passes out of engagement with e and into engagement with h with the effect that a circuit 1s now completed from the pole of the battery MB through the relay armature and its stop 0, winding of punch magnet E and contacts h, d, to the opposite pole of the battery and the punch magnet E is energized. When, however, the pole changer armature lever reaches its contact stop g, the circuit of the local battery LB is completed through the other winding of the differentially wound relay and its armature lever is transferred from 0 to f, thus opening the circuit of the punch magnet E and the parts are in normal position shown in the drawings. The dura tion of the ener 'ization of the magnets DE may be regulated by adjustment of the local contacts 9, 5, of the pole changer, as well as by adjustment of the relay stops f, 0. Er:- perience has demonstrated that this or amzation is one of great simplicity and e ectiveness and elimlnates largely personal key characteristics of the operator from the punched record of the tape.

Notwithstanding the high speed of operation of the punches, experience has shown thatv the desired clean cut and perfectl symmetrical perforation in the tape is mod1- fied and impaired by the draft of the paper against the side of the punch. To remedy this, and yet retain all the advantages of continuously actin tape drawing devices, 1 provide the following organization as a punch by reason of the slip 0 shown in detail in Fig. 2. The tape X passes between a lower roll R and an upper roll R. The roll R is driven continuously at proper speed by any suitable motor, as, for instance, an electric motor driving a belt R passing over a pulley R on the shaft of the roll, and the paper strip is pressed and drawn frictionally betweenthc two rolls. The upper roll R is mounted upon a spring or other arm S and is pressed constantly toward the roll R. The pressure, however, may be varied by the ad ustment of the tension spring .9 by means of a'screw thumb bolt 8. In this Way, I have found, by experience, that the friction upon the tape interposed between the rolls may be so regulated that the tape will be drawn forward with precision when disengaged from a punch, but will pause when on aged by i the roll due to the added resistance to the traverse of the tape. By such an organization which has been put into practical use by me, I am enabled to punch in the tape perfectly sym metrical perforations with clean cut flat edges. A similar result may be effected by such an arrangement as that shown in Fig. 3 where the lower and upper rolls R, R, are so set as, at all times, to firmly trictio'nally grasp the tape. Here the tape a: is deflected upwardly over the roll 7 supported in the end of a spring or other arm and thence downwardly between the drawing rolls. The upward tendency of the roll 7* may be adjusted by means of a spring 1" and a screw thumb bolt 1 When the resistance of the tape is increased by the entrance of the punch into it, the roll R will yield sufiiciently to permit that part of the tape engaged by the punch to remain momentarily at rest.

For many reasons, as already stated, 1 very much prefer an or anization having the mode of operation 0 that disclosed in Fig. 2. 1

I claim as my invention:

v 1. In an electro magnetic telegraph tape perforator, the combination of a key, the pole changer magnet controlled thereby, a dilterentially wound polarized relay, the pole changer armature lever and its limiting contact stops, the local circuit of the windings of the relay controlled at said stops, the punch magnets, the main battery, the punch magnet circuits controlled at the stops of the polarized relay and contacts of the pole changer also controlling the circuits of the punch magnets, the operation being substantially as described.

2. In an electro magnetic telegra h tape perforator, the combination of a ey, its local circuit, a pole changer magnet included in the local circuit, the armature lever of the pole changer and its contacts, a polarized relay and its local reversing circuits controlled by one set of contacts of the polechanger armature lever, the main battery, the punch magnets, the punch magnet circuits controlled at the contact stops of the polarized relay and another set of pole changer contacts also controlling the circuit of the punch magnets.

3. In a telegraph perforator, the combination with a punch of continuously operating frictionally actin tape drawing devices arranged to draw t e tape past the punches, and means for adjusting their frictional grip upon the tape so that they will slip and the traverse of the tape be arrested when en'- gaged by a punch.

4. In a telegraph tape perforator, the combination with a punch of frictional acting continuously operating tape drawing devices arranged to draw the tape past the punches and so adjusted that when the resistance of the tape is increased by the entrance thereinto of the punch, the drawing device slip and permit a pause in the movement of the tape whereby distortion of the punched perforation isprevented.

5. In a telegraph ta e perforator, the combination with a punc of continuously operating tape drawing devices constantly engagingl the tape and arranged to draw it past t e punches, the drawing devices comrisin in their organization means wherew en the resistance of the tape is in-- creased by the entrance of the punch into it, that part of the tape engaged by the punch is permitted to pause while the punch is enga ed with it.

n. testimony whereof I, have hereunto subscribed my name.

PATRICK B. DELANY.

Witnesses:

EDWARD C. DAVIDSON, KATHARINE MAGMAHON. 

